I am Zimbra newbie so please bear with me...
So I shared an account using:
zmmailbox -z -m firstname.lastname@example.org mfg / account email@example.com rwixd
zmmailbox -z -m firstname.lastname@example.org cm /shared email@example.com /
But when I reply to a mail 'on behalf of' from user inbox,
mail in shared Sent folder is saved as unread.
Is it a bug or am I doing something wrong?